Drying form



June 13, 1933. P. GUGGENHEIM DRYING FORM Filed May 14, 19150 P61 u/ Gayyard fl AAz/ I WM [ITO/7W6 K5 e -ES sired.

Patented June 13, 1933 PATENT OFFICE a eueennnnm, P I Ii L ADELI PI-IIA, PENNSYLVANIA, AssrenoR winnings; ram METAL mwmeronm com an OFhPHILADELPI-IIA, PENNSYLVANIA, ,a

cozaroanrion or menswear:

cheap rates, heatingfby 1 electricity is uneconomical. In most casessteam is the most satisfactory, as well-asthe most economical, heating agentr ltis obvious, however, that with the use of the ordinary internally-steam heated drying form the temperature of the form cannot beheld much under 212 F., which is hotter. than necessary for most fab-v rics, undesirably hot for sill; and rayon, and

\ disagreeably hot for the operator.

The object of the presentinvention isto provide a steam heated drying form the surfaceutemperature"of which may be so controlled andlimited as to enable it to have any temperature below that of the steam which, -within reasonable limits, may be de- The form herein disclosed as a preferred embodiment of the invention is capable of being heated to such a temperature, say'approximately 170-F.' i 1 a Fig. 1 is a side view of such a form.

: Fig..2isfian enlarged CIZOSS-SGCtlOIlwOll the line 22 of Fig. .1.

Fig. 3 is a side View of the detachable toe end of the form: v 1

The form a is a hollow metal shell having theapproximatesliape of the stocking to be dried thereon. The external contour of the form may be the sameas any ofthe forms heretofore in common use. The form is mounted on any suitable supporting base. Extending within the form from the base end to the toe end of the form and back again is a pipe 6. One end of the pipe is The base DRYING roan Application =n1a May14, 1930. Serial No. 452,220.

The steam passing through the pipe 6 heats the air in the form, which in turn heats the body of the form. There is also some transfer of heatgbyradiation and possibly by direct conduction through the metal of the pipe and form, although it is preferable to maintain the pipe I) spaced from the shell. ,The steam condenses in: the pipe I) and the jcondensate escapes byits exitend.

If the space within the form were confined, the air therein would soon become heated to approximately steam temperature and the metal of the form would soon be come as hot as in forms whereintheentire space within the form is occupied by circulating steam, as in the usual steam heated forms. T o lowerthe temperature of the air .and consequently of the-metal oi the iiorm,

I provide for a more or less slow but con-' stant cireulation of air 'therethrough, pref erably by the provision of air inlets c it the bottom of the form and air outlets cl: at the top, or toe end, of the form. The tendency of heated air being to rise, it. is ob: vious that the circulation of air. will be upward; that is, that the lower orifices 61 will act as air inlets and the upper orifices a? as. air outlets. The rapidity of the air circulation can be controlled by predetermining the areas oi these orifices, therebyiniturn' predetermining the temperature to whi h the air is heated in the course of. its flow through the form. a i 1 It is obvious that the air that may beat any time at the bottom oi; the. tornrwillbe thetcoolest air and that the temperature of the air will gradually increase as it ape proaches the top of the form and that the air "at the top of the form Will bethe hot, test. -It is usual-lydesirable that the toe end of the form shall be comparatively hot, so that no special provision need be made-to accomplish this result. It is, however, de; sirable that tlie welt fend of. the stocking shoulclhbe subjected to considerable heat. This may. i be accomplished by; compelling the steam, in its initial flow through, the form, to take a sinuous course, as byjbend-. ing the pipe near its inlet end into a zigzag shape as indicated at 6, whereby the. air,

upon its entrance to the form, is heated more rapidly than would otherwise by the case and whereby, also, the effect of the cooler air at this location is to some extent new 5 tralized.

The area of the air inflow orifices may be fixed, which may be desirable when the form is intended for the drying of stockings of a particular quality. It is, however, often desirable to vary the temperature of the form when it is used for drying stockings of varying qualities. In the preferred embodiment of the invention, means are pro vided to vary this area, preferably by varying the area of the inlet orifices. A preferable means of varying this area is to provide' several horizontal rows of air inlet orifices 0 and pivot to the form a gate or valve f which may be moved into position to open all of the orifices or to close one or more rows thereof. 7

The use of a detachable toe forvarying the length of the foot in accordance with the size of the foot of the stocking to be dried is well known. Heretofore, however, in forms provided with a detachable toe piece, the end of the main body of the form adjacent the toe piece is closed, so that the metal of the toe piece is not heated directly by the steam, but by conduction through the metal. In the construction shown in the drawing, the detachable toe piece 9 is heated in the same manner as the main body of the form. The end of the main body is open, instead of closed, as heretofore. The pipe I), where it curves or bends back upon itself,-extends beyond the open end of the form. The toe piece may be secured to the main body, as heretofore, preferably by frictional engagement of the rim of the toe piece with an annular shoulder formed on the rim of the main body. The detachable toe piece is not, however, a necessary part of the invention in its broader aspect.

While the invention has been described as a hosiery drying form, it should be under stood that the invention is applicable to other articles intended for analogous purposes, as, for example, the drying of gloves.

Having now fully described my invention, what I claim and desire to protect by Letters Patent is:

1. A drying form comprising'a hollow metal shell shaped to adaptit to the fabric article to be dried and a pipe extending into and out of the hollow interior of the form body and through which steam may flow without being admitted to the space outside the tube and within the shell, means providing a flow of relatively cool gaseous fluid through said space from substantially end to end of the form, and means to throttle said flow of fluid to effect a slower flow of fluid through said space, whereby the temperature of the shell may be varied without varying the rate of flow and temperature of the steam.

2. A drying form comprising a hollow metal shell body supported at one end and having an opening at its other end, a-detachable hollow toe piece beyond said open end, and a steam pipe extending through the shell body through and beyond its open end and thence bent back and extending through said open end and back through the shell body, and means providing a flow of relatively cool gaseous fluid through the space around the steam pipe enclosed by the shell body and the toe piece.

3. A drying form comprising a hollow metal shell shaped to adapt it to the fabric article to be dried and a pipe extending into and out of the hollow interior of the form body and through which steam may flow without being admitted to the space outside the tube and within the shell, means providing a flow of relatively cool gaseous fluid through said space from substantially end to end of the form, said means comprising openings in the form, and means consisting of a member movable to selectively close certain of said openings to throttle said flow of fluid to effect a slower flow of fluid through said space, whereby thetemperature of the shell may be varied Without varying the rate of flow and temperature of the steam.

4. A drying form comprising a hollow metal shell shaped to adapt it to the fabric article to be dried and a pipe extending into and out of the hollow interior of the form body and through which steam may flow without being admitted to the space outside the tube and within the shell, means providing a flow of relatively cool gaseous fluid through said space from substantially end to end of the form, said means comprising openings in the form, and means comprising a pivoted member adapted to selectively close certain of said openings to throttle said flow of fluid to effect a slower flow of fluid through said space, whereby the temperature of the shell may be varied without varying the rate of flow and temperature of the steam.

In testimony of which invention, I have hereunto set my hand, at Philadelphia, Pennsylvania, on this 12th day of May 1930.

a 7 PAUL GUGGENHEIM. 

